Set the bgcolor attribute value_问答_开发者_运维开发者技术经验分享

开发者 https://www.devze.com 2023-03-22 19:20 出处：网络

The fo开发者_StackOverflow中文版llowing doesn\'t work: <!DOCTYPE HTML> <title>Test</title>

The fo开发者_StackOverflow中文版llowing doesn't work:

<!DOCTYPE HTML>
<title>Test</title>
<embed id="foo" src="http://www.w3schools.com/media/bookmark.swf" width="400" height="40" type="application/x-shockwave-flash" />

<script type="text/javascript">
document.getElementById("foo").setAttribute("bgcolor", "#00FF00");
</script>

But if you change setAttribute to ("width", "800"), it works with no problem! What am I missing?

document.getElementById("foo")
                         .setAttribute("style", "background-color: #00FF00;");

width is an attribute. background-color is a style and should be placed as such

According to the specification embed has a width attribute but doesn't have a bgcolor attribute.

It is a replaced element anyway, so whatever colour it is, it will take from the Flash object anyway.

Like Nael said background-color is a style. That said beyond the fact that updating the existing style attribute using setAttribute is very difficult, it's also not very reliable. If your planning on doing anything more involved seriously consider a JavaScript library.